body,html{width: 100%;height: 100%; }
.g_404{width: 100%;height: 100%;background-color: white;position: relative;}
.g_404_content{width: 800px;height: 500px;    position: absolute;right: 0;left: 0;top: 0;bottom: 0;margin:auto; }
.g_404_contentImg1 img{margin: 0 auto;display: block;}
.g_404_contentImg2{margin-top:50px ;}
.g_404_contentImg2 img{margin: 0 auto;display: block;}
.g_404_contentP{text-align: center;font-size: 24px;color: #666;margin-top:50px ;}
.g_404_contentDiv{display: flex; justify-content: space-around; margin-top:90px ; }
.g_404_contentDiv button{width: 170px;height: 45px;border-radius: 10px;color: white; font-size: 18px;}
.g_404_contentBtn1 { background-color: rgb(240,130,0);}
.g_404_contentBtn2 { background-color: rgb(73,142,61);}
.g_404_contentDiv button:hover{ cursor: pointer;}
